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The aim of this project is to develop a home automation system that can be controlled remotely using a land line connection. This system is designed to provide control of home appliances through land line by dialing the designated number for the particular load.To watch the output video and to get more information about this project, kindly visit http://www.edgefxkits.com/home-automation-using-digital-control
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HOME AUTOMATION USING DIGITAL CONTROL
ABSTRACT
The aim of this project is to develop a home automation system that can be controlled
remotely using a landline connection. The home automation is one of the most emerging trends
in modernization of home appliance control. Presently, conventional wall switches are located in
different parts of the house and one has to physically go near them and press them to turn the
loads on/off. It becomes very difficult for the elderly or physically handicapped people to do so
This system is designed to provide control of home appliances through landline by
dialing the designated number for the particular load. Dialing can be done from the home phone
or a call made to the home number from outside. This system is designed without engaging a
programmable microcontroller but is based on digital logic using DTMF technology (Dual Tone
multiple frequency) which receives the command from the landline phone to develop digital
output. This digital signal is further processed to actuate switching mechanism through relay
driver to turn on/off the loads/appliances. It can be used to switch appliances from anywhere,
overcoming the limited range of other infrared and radio frequency type controls. This proposed
system gives a new direction to the development of home automation.
The concept of this system can be extended in future by giving an acknowledgement
message to the user by system on the status of loads by using GSM modem
BLOCK DIAGRAM:
HARDWARE REQUIREMENTS:
Transformer, diodes, capacitor, Voltage regulator,
resistor, Inverter, Flip flops, De-multiplexer, Relay, 555
Timer, DTMF decoder, Opto-isolator.